1285306502480 has 480 divisors, whose sum is σ = 4164604305408. Its totient is φ = 357860505600.

The previous prime is 1285306502471. The next prime is 1285306502503. The reversal of 1285306502480 is 842056035821.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 32252327 + ... + 32292153.

Almost surely, 2^{1285306502480} is an apocalyptic number.

1285306502480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1285306502480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2082302152704).

1285306502480 is an abundant number, since it is smaller than the sum of its proper divisors (2879297802928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1285306502480 is a wasteful number, since it uses less digits than its factorization.

1285306502480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39915 (or 39896 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 44.

The spelling of 1285306502480 in words is "one trillion, two hundred eighty-five billion, three hundred six million, five hundred two thousand, four hundred eighty".